DictionaryinsolentBoldly disrespectful
adjective

insolent

IN-suh-lunt/ˈɪnsələnt/

Boldly rude or disrespectful.

The insolent man interrupts his colleague with a mocking smirk and dismissive palm.

At a sparsely suggested meeting table, a man rudely interrupts a colleague with a mocking smirk and a dismissive palm held toward him.
Etymology

Combining “not” with “be accustomed” gave Latin an adjective meaning “unusual, unfamiliar,” but also “arrogant, immoderate.” English preserves that latter sense in behavior showing insulting disregard for others.

In context

Old Time Radio Researchers3:34
you are being very patronizing and very insolent Lawrence and quite aware the Congo supplies most of the world's uranium
Tarzan Lord of the Jungle - Tarzan and the Long Journey

More examples

  • Don't take that insolent tone with me.
  • The manager refuses to tolerate insolent remarks from customers.
  • He gives an insolent grin when asked to apologize.

Forms

insolent

insolence noun — Bold rudeness or disrespect toward others.

insolently adverb — In a boldly rude or disrespectful manner.

Similar words

impudent
Emphasizes shameless boldness, especially toward someone deserving respect.
rude
Covers general bad manners without necessarily implying bold defiance.
impertinent
Often describes intrusive questions or disrespectful comments toward authority.